CTET Paper-II Science: Questions 127 - 130 of 207

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 207 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 127

» Science Content » Natural Phenomena

Appeared in Year: 2011

MCQ▾

Question

Green plants appear to release oxygen instead of carbon dioxide into the atmosphere during the daytime because (June)

Choices

Choice (4) Response
a.

Green plants respire only during the nighttime

b.

Green plants respire during the daytime but are involved in photosynthesis during the nighttime

c.

The rate of photosynthesis is higher than the rate of respiration during the daytime

d.

Green plants do not respire during the nighttime

Question number: 128

» Science Content » Basic Chemistry

Appeared in Year: 2013

MCQ▾

Question

When we add aluminum foil to freshly prepared sodium hydroxide solution a gas is produced. Which of the following correctly states the property of this gas? (July)

Choices

Choice (4) Response
a.

Colorless and odorless gas which extinguishes a burning match stick.

b.

Brown colored pungent smelling gas.

c.

Colorless and odorless gas which produces a ‘pop’ sound when a burning match stick is brought near it.

d.

Colorless and odorless gas which promotes burning of a candle.

Question number: 129

» Science Content » Basic Chemistry

Appeared in Year: 2011

MCQ▾

Question

A doctor prescribes a medicine to treat hyperacidity. The main ingredient of the medicine is (June)

Choices

Choice (4) Response
a.

MgCl2

b.

Na2CO3

c.

CaCO3

d.

Al(OH)3

Question number: 130

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

Given below are a few chemical processes:

1. Rusting of iron

2. Burning of a candle

3. Respiration

4. Photosynthesis

Which two of these represent slow combustion? (Jan)

Choices

Choice (4) Response
a.

4 and 1

b.

2 and 3

c.

1 and 3

d.

2 and 4

Sign In